Encryption application of a fast stimulus-responsive hydrogen-bonded organic framework based on FRET

A photochromic ionic hydrogen-bonded organic framework (iHOF-51) was synthesized by reacting organic carboxylic acids with amidinium salts. Fast, reversible, and high-contrast stimulus-responsive behavior via anionic radical naphthalenediimide (NDI) is observed. iHOF-51 exhibits time-dependent photo...

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Published inChemical communications (Cambridge, England) Vol. 61; no. 28; pp. 5345 - 5348
Main Authors Li, Bing-Sha, Cao, Li-Hui, Chen, Xu-Yong, Tian, Yu
Format Journal Article
LanguageEnglish
Published England 01.04.2025
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Summary:A photochromic ionic hydrogen-bonded organic framework (iHOF-51) was synthesized by reacting organic carboxylic acids with amidinium salts. Fast, reversible, and high-contrast stimulus-responsive behavior via anionic radical naphthalenediimide (NDI) is observed. iHOF-51 exhibits time-dependent photochromism in the powder state and excellent photoluminescent properties based on the synergistic interaction of FRET and radical anions in the 1%-iHOF-51-PVA composite membrane. Charge-assisted photochromic iHOF-51 enables fast stimulus-responsive behavior through photogenerated anionic radicals. Time-dependent photochromism in the powder form and FRET-based photoluminescence in the composite membranes are observed.
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For ESI and crystallographic data in CIF or other electronic format see DOI
Electronic supplementary information (ESI) available: Materials, experimental details, crystal data, crystal structures, UV-visible spectra, fluorescence spectra, thermogravimetric analysis, Fourier-transform infra-red spectra, and digital images. CCDC
iHOF-51
https://doi.org/10.1039/d5cc00892a
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d5cc00892a